Flipping raining around drive home (7)

I believe the answer is:

ingrain

'drive home' is the definition.
(to ingrain is to drive home or firmly establish)

'flipping raining around' is the wordplay.
'around' indicates the answer is hidden within the clue.
'INGRAIN' is hidden within 'flipping raining'.

(Other definitions for ingrain that I've seen before include "Raining? (anagram)" , "Firmly instil" , "Make a habit" , "dye thus" , "Firmly establish (habit)" .)

I've seen this clue in The Telegraph.

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